<template>
  <h3>我是子组件Child</h3>
  <p @click="$emit('update:user-name',userName+'!')">userName:{{ userName }}</p>
  <p @click="$emit('update:age',age+1)">age:{{ age }}</p>
</template>

<script lang="ts" setup>
defineProps(["userName", "age"]);
const $emit = defineEmits(["update:user-name", "update:age"]);

</script>

<style scoped>
</style>